Enumerating every declared date gives (month, day, concatenation): (3,3,33), (3,6,36), (3,12,312), (3,15,315), (3,30,330), (4,4,44), (4,8,48), (4,16,416), (4,20,420), (5,5,55), (5,10,510), (5,20,520), and (5,25,525). Each concatenation is divisible by its month and day. No other declared date passes both tests, so the exact count is 13 and the claim of 15 is false.
RESULT_JSON: {"count":13,"good_dates":[{"month":3,"day":3,"concatenated":33},{"month":3,"day":6,"concatenated":36},{"month":3,"day":12,"concatenated":312},{"month":3,"day":15,"concatenated":315},{"month":3,"day":30,"concatenated":330},{"month":4,"day":4,"concatenated":44},{"month":4,"day":8,"concatenated":48},{"month":4,"day":16,"concatenated":416},{"month":4,"day":20,"concatenated":420},{"month":5,"day":5,"concatenated":55},{"month":5,"day":10,"concatenated":510},{"month":5,"day":20,"concatenated":520},{"month":5,"day":25,"concatenated":525}]}
